pack.js

// https://github.com/dutiyesh/chrome-extension-cli/blob/master/templates/shared/pack.js
const { readFileSync, existsSync, mkdirSync } = require('fs');
const { parse, resolve } = require('path');
const AdmZip = require('adm-zip');

try {
    const { base } = parse(__dirname);
    const { version } = JSON.parse(readFileSync(resolve(__dirname, 'dist', 'manifest.json'), 'utf8'));

    const outdir = 'release';
    const filename = `${base}-v${version}.zip`;
    const zip = new AdmZip();
    zip.addLocalFolder('dist');
    if (!existsSync(outdir)) {
        mkdirSync(outdir);
    }
    zip.writeZip(`${outdir}/${filename}`);

    console.log(
        `Success! Created a ${filename} file under ${outdir} directory. You can upload this file to web store.`,
    );
} catch (e) {
    console.error('Error! Failed to generate a zip file.');
}